The more you can exile from opponents the larger Umbris can grow
There's a lot of variety in our card draw: our most potent options come from sacrificing creatures, with the highlights being Species Specialist, Disciple of Bolas, and the almighty Skullclamp
Boltwave is the Lava Spike I never knew I needed, and while I'm definitely cooking up some Modern decks in the kitchen, Boltwave is exactly what this archetype needed to be competitively viable in Standard
It would be terrible to buy Legacy Delver only to discover youd rather play Reanimator
When paired with cards like Moana, Of Motunui, you can challenge opposing characters in waves and reduce how much damage you take overall, though you may need several in play to eliminate stronger opponents
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